Skip To Main Content
Principia School


You are beginning an exciting journey to find the right educational fit for your child and family—a school that aligns with your family's values and supports the educational and character development goals you hope to achieve by the time your child graduates from high school! We are excited you're here and interested in learning more about Principia.

Letter from the Director of Admission

Thank you for your interest in Principia School! We look forward to learning more about your family during the admission process and showcasing all the wonderful opportunities Principia has to offer.

Principia is an independent, coeducational college-preparatory school offering innovative programs for Early Childhood through grade 12. Grounded in the teachings of Christian Science, we welcome students of diverse faiths who value scholarship and are eager to grow in character, embrace opportunity, and pursue excellence. Here, all members are encouraged to actively support and live our core value of LOVE and its attributes – Limitless potential; Overcome obstacles; Value God, ourselves and others; Embrace excellence. We believe our commitment to these values and attributes strengthens the individual and unifies the community. 

Should you have any questions about the admissions process, please do not hesitate to get in touch. You can reach me by email at or by phone at 314.514.3188. You are also welcome to contact the Associate Director associated with your level of interest, and they will be happy to assist you. Find their contact information at the bottom of this page. 

There are multiple steps in the admission process, including the application; school visit; interviews; and a grade-level assessment. Each of these steps comes together to create the whole application package which is evaluated for each applicant. I encourage you to take a moment to review the Admissions page for your child’s level for specific information regarding the process. We recommend you begin your admissions journey with a visit. 

To maintain our small class sizes and provide the best experience possible for our students, we take great care to ensure the right-fit, qualified applicants are considered, but please be advised there is a wait pool for a number of our classes. You are welcome to apply for the wait pool in the grade that is at capacity, and if space becomes available, we will let you know right away. 

We cherish and take great pride in the wonderfully diverse environment at Principia School. We seek students from different backgrounds with a diverse array of interests and skill sets. Our student body is comprised of bright young thinkers hailing from all over the world who are passionate about science, art, and athletics—just to name a few. While our Middle and Upper School boarding program is reserved for those studying and practicing Christian Science, our day program is open to students of all faith backgrounds.  

To learn more about our innovative programs, please join us at one of our upcoming Open Houses, Discovery Nights, or an upcoming ISSL event. You can peruse our visit page for all options. 

Enjoy your time getting to know Principia on our website. I look forward to sharing my love for Principia with you and your family soon.  


Ginger Roth 

Director of Admission  

At Principia, as the name indicates, the purpose is to base all work in Principle, thus laying a solid foundation scholastically, morally, and spiritually.

Education at The Principia, p. 160

Process Snapshot


Admissions Process

Parent to Parent

We are daily enriched by Principia—the learning, the caring, strong sense of community, generosity of financial aid, and spiritual well-being that Principia fosters.

The teachers really work to foster problem solving, team work, and critical thinking skills which prepare them for a future as a part of a global economy.

Schedule a Visit

Meeting our teachers and students in person and seeing our 360-acre campus in action is the best way to experience Principia School. 

Schedule a Visit

Tuition Assistance

We are committed to making a Principia education affordable.

Learn More


Ready to apply to Principia School? Learn more about the process and begin here.

Apply Now


We look forward to our journey together and sharing our stories of how Principia School is changing lives!

Terry Grigsby

Assistant Head of School for Enrollment Management and Residential Life

Ginger Roth

Director of Admission

Jordan Poznick

Sr. Associate Director of Admission Upper School

Sukie Berberich

Associate Director of Admission Early Childhood & Lower School

Caroline Boucher

Associate Director of Admission Middle School & International

Melissa Schuette

Admissions Data and Systems Specialist

Mitch Stock

Director of Tuition Assistance

Shawn Zinn

Admissions Office Manager

Views of Principia School

Guided by their own curiosity and by caring faculty and staff members, students rise to academic challenges, demonstrating creativity, critical thinking, and entrepreneurial approaches.

See our students in action.